Crossword Genius

Coax to eat cold lolly (5)

Ross

I believe the answer is:

lucre

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But I can't explain it at all! Could you help me understand?

(Other definitions for lucre that I've seen before include "monetary gain" , "ill-gotten gain" , "tin" , "Sordid gain; riches" , "Bread, dough, lolly" .)

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